What is 1/2 minus 4 in fraction?
1/2 minus 4 equals to -7/2 in fraction form.
1/2 - 4 in fraction form
Learn how to find what is 1/2 minus 4 in fraction form just in a few minutes. We have covered the easiest method to write 1/2 - 4 as a fraction and decimal.
Summary: 1/2 minus 4
Since both the fractions have the unequal denominators, you have to find the equivalent fractions for 1/2 and 4 having identical denominators before starting adding the fractions. Find the LCM of denominators, 2 is the LCM of 2 and 1. Multiply the LCM 2 with all the numerators and denominators of both fractions (1/2 x 2/2) - (4 x 2/2) and simplify further in order to have the common denominators. By simplifying the fraction subtraction expression becomes -7/2.
1/2-4 as a fraction
1/2 - 4 = (?)
1/2 - 4/1 = [(1 x 1) - (4 x 2)]/(2 x 1)
= (1 - 8)/2
= -7/2
1/2 - 4 = -7/2
1/2 minus 4 as a fraction is -7/2.
where
1/2 is a fraction as a minuend,
4 is a fraction as a subtrahend,
-7/2 is the difference between 1/2 and 4.
1/2 minus 4 as a decimal
1/2 - 4 = -7/2
-7/2 = -3.5
1/2-4 as a decimal is -3.5
where
-3.5 is the difference between 1/2 and 4.
How to find 1/2-4 as a fraction?
The below workout with step by step calculation shows how to find the difference between fraction and a whole number by subtracting 4 from 1/2. use any one of the following methods to find the equivalent fraction for 1/2 minus 4.
1. LCM method
2. Cross multiplication method.
1/2-4 using LCM Method:
What is 1/2 minus 4 as a fraction?
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 4/1
What to be found?
1/2-4 = ?
Find what's the difference between 1/2 and 4.
step 2 Compare the denominators of fractions 1/2 and 4 to identify whether it is a like or unlike fraction subtraction. Since the denominators of given fractions 1/2 and 4 are not equal, it is said to be unlike fractions subtraction.
step 3For unlike fractions subtraction, find the LCM (least common multiple) of both denominators of fractions 1/2 and 4:
The LCM of 2 and 1 is 2.
step 4 Write the fractions 1/2 and 4 in the subtraction expression form and multiply LCM with all the numerators and denominators of both fractions.
=1/2-4
=(1 x 2)/(2 x 2)-(4 x 2)/(1 x 2)
step 5 Simplify the expression to have common denominator:
=1/2-8/2
step 6 Take the common values out and rewrite the above expression like the below:
=1/2 x (1/1-8/1)
=1/2 x (1 - 8)
step 7Simplify the above expression further:
=1/2 x -7
=-7/2
1/2-4=-7/2
Hence,
1/2 minus 4 equals to -7/2 in fraction.
1/2-4 using Cross Multiplication Method:
step 1 Observe the input parameters and what to be found:
Input:
Fraction A: 1/2
Fraction B: 4/1
What to be found?
1/2-4 = ?
Find what's the difference between 1/2 and 4.
step 2 Find the product of numerator of Fraction A and denominator of Fraction B (1 x 1), find the product of numerator of Fraction B and denominator of Fraction A (4 x 2), and find the product of both denominators of Fraction A and Fraction B (2 x 1) and rewrite the equation as like the below:
= (1 x 1) - (4 x 2)/(2 x 1)
step 3 Simplify and rewrite the fraction:
= (1 - 8)/2
1/2-4 = -7/2
Hence,
1/2 minus 4 = -7/2